Dan Gohman 8981962672 Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk ... replacement of multiple values. This is slightly more efficient than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically could be optimized even further. However, an important property of this new function is that it handles the case where the source value set and destination value set overlap. This makes it feasible for isel to use SelectNodeTo in many very common cases, which is advantageous because SelectNodeTo avoids a temporary node and it doesn't require CSEMap updates for users of values that don't change position. Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to handle operand lists more efficiently, and to correctly handle a number of corner cases to which its new wider use exposes it. This commit also includes a change to the encoding of post-isel opcodes in SDNodes; now instead of being sandwiched between the target-independent pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel opcodes are now represented as negative values. This makes it possible to test if an opcode is pre-isel or post-isel without having to know the size of the current target's post-isel instruction set. These changes speed up llc overall by 3% and reduce memory usage by 10% on the InstructionCombining.cpp testcase with -fast and -regalloc=local. llvm-svn: 53728		2008-07-17 19:10:17 +00:00
..
AsmPrinter.h	Unbreak C++ tests on x86 Darwin.	2008-07-08 16:40:43 +00:00
BreakCriticalMachineEdge.h	Fix the name of BreakCriticalMachineEdge.h's include guard	2008-07-16 16:04:07 +00:00
CallingConvLower.h	Wrap MVT::ValueType in a struct to get type safety	2008-06-06 12:08:01 +00:00
Collector.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
CollectorMetadata.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
Collectors.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
DAGISelHeader.h	Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk	2008-07-17 19:10:17 +00:00
DwarfWriter.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
ELFRelocation.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
FileWriters.h	Use PassManagerBase instead of FunctionPassManager for functions	2008-03-11 22:29:46 +00:00
IntrinsicLowering.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
LinkAllCodegenComponents.h	Do not use computationally expensive scheduling heuristics with -fast.	2008-07-01 18:05:03 +00:00
LiveInterval.h	Instead of adding an isSS field to LiveInterval to denote stack slot. Use top bit of 'reg' instead. If the top bit is set, than the LiveInterval represents a stack slot live interval.	2008-06-23 21:03:19 +00:00
LiveIntervalAnalysis.h	- Change the horrible N^2 isRegReDefinedByTwoAddr. Now callers must supply the operand index of def machineoperand and at most one full scan of non-implicit operands is needed.	2008-07-10 07:35:43 +00:00
LiveStackAnalysis.h	Add a stack slot coloring pass. Not yet enabled.	2008-06-04 09:18:41 +00:00
LiveVariables.h	- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.	2008-07-03 09:09:37 +00:00
MachineBasicBlock.h	Pool-allocation for MachineInstrs, MachineBasicBlocks, and	2008-07-07 23:14:23 +00:00
MachineCodeEmitter.h	Prune and tidy #includes.	2008-05-29 19:52:31 +00:00
MachineConstantPool.h	Trim unnecessary #includes.	2008-07-11 20:38:31 +00:00
MachineDominators.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
MachineFrameInfo.h	Stack objects have nonnegative indices, not just positive indices.	2008-07-10 19:57:25 +00:00
MachineFunction.h	Pool-allocation for MachineInstrs, MachineBasicBlocks, and	2008-07-07 23:14:23 +00:00
MachineFunctionPass.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
MachineInstr.h	Add a utility function to MachineInstr for testing whether an instruction	2008-07-12 00:10:52 +00:00
MachineInstrBuilder.h	Pool-allocation for MachineInstrs, MachineBasicBlocks, and	2008-07-07 23:14:23 +00:00
MachineJumpTableInfo.h	Fix more -Wshorten-64-to-32 warnings.	2008-05-05 18:30:58 +00:00
MachineLocation.h	Rename MRegisterInfo to TargetRegisterInfo.	2008-02-10 18:45:23 +00:00
MachineLoopInfo.h	Remove uses of llvm/System/IncludeFile.h that are no longer needed.	2008-05-06 01:32:53 +00:00
MachineMemOperand.h	Move MachineMemOperand's constructor out of line, to avoid a	2008-07-07 20:32:02 +00:00
MachineModuleInfo.h	Use StringMap for greater justice!	2008-07-07 20:59:31 +00:00
MachineOperand.h	Fix a copy+pasto in an assertion string.	2008-07-10 19:58:23 +00:00
MachinePassRegistry.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
MachineRegisterInfo.h	Minor spiller tweak to unfavor reload into load/store instructions.	2008-06-19 01:16:17 +00:00
MachineRelocation.h	Revert 51775.	2008-05-30 22:47:19 +00:00
MachORelocation.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
Passes.h	Add a stack slot coloring pass. Not yet enabled.	2008-06-04 09:18:41 +00:00
PseudoSourceValue.h	Include a frame index in the "fixed stack" pseudo source value	2008-07-11 22:44:52 +00:00
RegAllocRegistry.h	Don't attribute in file headers anymore. See llvmdev for the	2007-12-29 19:59:42 +00:00
RegisterCoalescer.h	Remove uses of "llvm/Support/Debug.h" from LLVM include files, which	2008-07-07 18:14:29 +00:00
RegisterScavenging.h	Allow registers defined by implicit_def to be clobbered.	2008-04-10 23:47:53 +00:00
RuntimeLibcalls.h	Factorize some code for determining which libcall to use.	2008-07-17 02:36:29 +00:00
ScheduleDAG.h	Reapply 53476 and 53480, with a fix so that it properly updates	2008-07-14 18:19:29 +00:00
SchedulerRegistry.h	Do not use computationally expensive scheduling heuristics with -fast.	2008-07-01 18:05:03 +00:00
SelectionDAG.h	Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk	2008-07-17 19:10:17 +00:00
SelectionDAGISel.h	Reapply 53476 and 53480, with a fix so that it properly updates	2008-07-14 18:19:29 +00:00
SelectionDAGNodes.h	Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk	2008-07-17 19:10:17 +00:00
ValueTypes.h	Allow these transforms for types like i256 while	2008-06-16 08:14:38 +00:00
ValueTypes.td	remove attribution from a variety of miscellaneous files.	2007-12-29 22:59:10 +00:00